49 lines
1.2 KiB
GLSL
49 lines
1.2 KiB
GLSL
#version 330 core
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in vec2 TexCoord;
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in vec3 FragPos;
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in vec3 Normal;
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in vec3 Tangent;
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in vec3 Bitangent;
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out vec4 color;
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uniform sampler2D diffuseMap;
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uniform sampler2D normalMap;
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uniform sampler2D heightMap;
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uniform vec3 lightPos;
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uniform float heightScale;
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vec3 GetNormalFromMap()
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{
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vec3 normal = texture(normalMap, TexCoord).rgb;
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normal = normalize(normal * 2.0 - 1.0);
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mat3 TBN = mat3(Tangent, Bitangent, Normal);
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return normalize(TBN * normal);
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}
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void main()
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{
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vec3 ambient = vec3(0.3);
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vec3 diffuse = vec3(0.7);
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vec3 specular = vec3(0.2);
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vec3 lightColor = vec3(1.0);
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vec3 viewPos = vec3(0.0, 0.0, 3.0);
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vec3 lightDir = normalize(lightPos - FragPos);
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vec3 normal = GetNormalFromMap();
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vec3 viewDir = normalize(viewPos - FragPos);
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vec3 height = texture(heightMap, TexCoord).rgb;
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vec3 pos = FragPos + normal * height * heightScale;
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vec3 diffuseValue = max(dot(normal, lightDir), 0.0) * diffuse * lightColor;
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vec3 specularValue = pow(max(dot(viewDir, reflect(-lightDir, normal)), 0.0), 32.0) * specular *lightColor;
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vec4 result = vec4((ambient + diffuseValue + specularValue) * texture(diffuseMap, TexCoord).rgb, 1.0);
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color = vec4(result);
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} |